07/07/2010 05:12 am ET Updated May 25, 2011

Vertical Gardens Grow In Popularity

Vertical gardens -- which began as an experiment in 1988 by Patrick Blanc, a French botanist intent on creating a garden without dirt -- are becoming increasingly popular at home. Avid and aspiring gardeners, frustrated with little outdoor space, are taking another look at their walls and noticing something new: more space.

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